package chat;

public class Test4 extends Test3 {
    static{
        System.out.print("a");
    }
    public Test4(){
        System.out.print("b");
    }

    public static void main(String[] args) {
        Test4 t4 = new Test4();
        Thread thread = Thread.currentThread();
        System.out.println(thread.getName()+"--"+thread.getId());

    }
}
